FFmpeg - Open source multimedia suite for conversion, playback, profiling, and streaming.
HandBrake - HandBrake allows users to easily convert video files into a wide variety of different formats.
Xvid - Xvid is an open-source research project focusing on video compression and is a collaborative...
Freemake Video Converter - Freemake Video Converter Converts 500+ Formats & Gadgets FREE! Convert to MP4, AVI, MKV, WMV, DVD, Xvid. FREE Download. **Voted Best of 2018** Comes with FREE…
FLAC - A free, open source codec for lossless audio compression and decompression
File Converter - Convert & compress everything in 2 clicks!